Stream and Station

Most
Probable
Forecast
(1000 AF)

Most
Probable
Forecast
(% of Avg)

Reasonable
Maximum
(% of Avg)

Reasonable
Minimum
(% of Avg)

30 Year
(1961-1990)
Avg Runoff
(1000 AF)

GREY'S RIVER
Palisades abv, WY

APR-SEP

355

91

118

62

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

290
360

91
90

126
118

47
54

319
399

HENRYS FORK
Ashton nr, ID
St. Anthony, ID
Rexburg nr, ID

APR-SEP
APR-JUL
APR-JUL

605
580
1000

83
86
82

94
115
96

65
55
64

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

320

88

105

61

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

320
395

84
84

109
108

59
57

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

133
161

89
88

137
136

40
50

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

41

95

97

62

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

89
78

83
84

106
107

58
59

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

35

97

143

56

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

96

100

144

61

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

APR-JUL
APR-SEP
APR-JUL
APR-SEP

215
245
255
270

85
86
86
87

146
138
169
153

24
31
18
24

254
286
295
309